Version 3.0.9...

src/arm/lithium-codegen-arm.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 154 matching lines @@
 }
 
 
 bool LGapResolver::CanReach(LGapNode* a, LGapNode* b) {
   ASSERT(a != b);
   return CanReach(a, b, next_visited_id_++);
 }
 
 
 void LGapResolver::RegisterMove(LMoveOperands move) {
-  if (move.from()->IsConstantOperand()) {
+  if (move.source()->IsConstantOperand()) {
     // Constant moves should be last in the machine code. Therefore add them
     // first to the result set.
-    AddResultMove(move.from(), move.to());
+    AddResultMove(move.source(), move.destination());
   } else {
-    LGapNode* from = LookupNode(move.from());
-    LGapNode* to = LookupNode(move.to());
+    LGapNode* from = LookupNode(move.source());
+    LGapNode* to = LookupNode(move.destination());
     if (to->IsAssigned() && to->assigned_from() == from) {
       move.Eliminate();
       return;
     }
     ASSERT(!to->IsAssigned());
     if (CanReach(from, to)) {
       // This introduces a cycle. Save.
       identified_cycles_.Add(from);
     }
     to->set_assigned_from(from);
@@ skipping 142 matching lines @@
 
 bool LCodeGen::GenerateDeferredCode() {
   ASSERT(is_generating());
   for (int i = 0; !is_aborted() && i < deferred_.length(); i++) {
     LDeferredCode* code = deferred_[i];
     __ bind(code->entry());
     code->Generate();
     __ jmp(code->exit());
   }
 
+  // Force constant pool emission at the end of deferred code to make
+  // sure that no constant pools are emitted after the official end of
+  // the instruction sequence.
+  masm()->CheckConstPool(true, false);
+
   // Deferred code is the last part of the instruction sequence. Mark
   // the generated code as done unless we bailed out.
   if (!is_aborted()) status_ = DONE;
   return !is_aborted();
 }
 
 
 bool LCodeGen::GenerateSafepointTable() {
   ASSERT(is_done());
   safepoints_.Emit(masm(), StackSlotCount());
@@ skipping 455 matching lines @@
   DoubleRegister dbl_scratch = d0;
   LUnallocated marker_operand(LUnallocated::NONE);
 
   Register core_scratch = scratch0();
   bool destroys_core_scratch = false;
 
   const ZoneList<LMoveOperands>* moves =
       resolver_.Resolve(move->move_operands(), &marker_operand);
   for (int i = moves->length() - 1; i >= 0; --i) {
     LMoveOperands move = moves->at(i);
-    LOperand* from = move.from();
-    LOperand* to = move.to();
+    LOperand* from = move.source();
+    LOperand* to = move.destination();
     ASSERT(!from->IsDoubleRegister() ||
            !ToDoubleRegister(from).is(dbl_scratch));
     ASSERT(!to->IsDoubleRegister() || !ToDoubleRegister(to).is(dbl_scratch));
     ASSERT(!from->IsRegister() || !ToRegister(from).is(core_scratch));
     ASSERT(!to->IsRegister() || !ToRegister(to).is(core_scratch));
     if (from == &marker_operand) {
       if (to->IsRegister()) {
         __ mov(ToRegister(to), core_scratch);
         ASSERT(destroys_core_scratch);
       } else if (to->IsStackSlot()) {
@@ skipping 161 matching lines @@
   }
 }
 
 
 void LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) {
   // Nothing to do.
 }
 
 
 void LCodeGen::DoModI(LModI* instr) {
-  Abort("ModI not implemented");
   class DeferredModI: public LDeferredCode {
    public:
     DeferredModI(LCodeGen* codegen, LModI* instr)
         : LDeferredCode(codegen), instr_(instr) { }
     virtual void Generate() {
       codegen()->DoDeferredGenericBinaryStub(instr_, Token::MOD);
     }
    private:
     LModI* instr_;
   };
@@ skipping 35 matching lines @@
   __ mov(result, Operand(result, ASR, 1));
 
   __ b(al, &done);
   __ bind(&deoptimize);
   DeoptimizeIf(al, instr->environment());
   __ bind(&done);
 }
 
 
 void LCodeGen::DoDivI(LDivI* instr) {
-  Abort("DivI not implemented");
   class DeferredDivI: public LDeferredCode {
    public:
     DeferredDivI(LCodeGen* codegen, LDivI* instr)
         : LDeferredCode(codegen), instr_(instr) { }
     virtual void Generate() {
       codegen()->DoDeferredGenericBinaryStub(instr_, Token::DIV);
     }
    private:
     LDivI* instr_;
   };
@@ skipping 217 matching lines @@
 }
 
 
 void LCodeGen::DoConstantI(LConstantI* instr) {
   ASSERT(instr->result()->IsRegister());
   __ mov(ToRegister(instr->result()), Operand(instr->value()));
 }
 
 
 void LCodeGen::DoConstantD(LConstantD* instr) {
-  Abort("DoConstantD unimplemented.");
+  ASSERT(instr->result()->IsDoubleRegister());
+  DwVfpRegister result = ToDoubleRegister(instr->result());
+  double v = instr->value();
+  __ vmov(result, v);
 }
 
 
 void LCodeGen::DoConstantT(LConstantT* instr) {
   ASSERT(instr->result()->IsRegister());
   __ mov(ToRegister(instr->result()), Operand(instr->value()));
 }
 
 
 void LCodeGen::DoJSArrayLength(LJSArrayLength* instr) {
@@ skipping 1022 matching lines @@
 
   // Retrieve FPSCR and check for vfp exceptions.
   __ vmrs(scratch);
   // Restore FPSCR
   __ vmsr(prev_fpscr);
   __ tst(scratch, Operand(kVFPExceptionMask));
   DeoptimizeIf(ne, instr->environment());
 
   // Move the result back to general purpose register r0.
   __ vmov(result, single_scratch);
+
+  // Test for -0.
+  Label done;
+  __ cmp(result, Operand(0));
+  __ b(ne, &done);
+  __ vmov(scratch, input.high());
+  __ tst(scratch, Operand(HeapNumber::kSignMask));
+  DeoptimizeIf(ne, instr->environment());
+  __ bind(&done);
 }
 
 
 void LCodeGen::DoMathSqrt(LUnaryMathOperation* instr) {
   DoubleRegister input = ToDoubleRegister(instr->input());
   ASSERT(ToDoubleRegister(instr->result()).is(input));
   __ vsqrt(input, input);
 }
 
 
@@ skipping 850 matching lines @@
 
 
 void LCodeGen::DoOsrEntry(LOsrEntry* instr) {
   Abort("DoOsrEntry unimplemented.");
 }
 
 
 #undef __
 
 } }  // namespace v8::internal